aqua-pure ap811 filter replacement cartridge

REDUCES SEDIMENT - This filter cartridge provides sediment filtration down to 25 micron nominal;LONGER CARTRIDGE LIFE - The grooved surface of this filter cartridge increases total surface area; which can lead to longer cartridge life (as compared to 3M non-grooved surface cartridges);WHOLE HOUSE FILTRATION - This filter cartridge fits into systems that filter throughout the home for appliances; sinks; bathrooms; and laundry;IDEAL FOR THREE BATHROOM HOMES - This large capacity filter cartridge is ideal for homes with three or more bathrooms;HOUSING COMPATIBILITY - Use this filter cartridge with 3M Aqua-Pure Whole House Filter Housing AP801T and AP801B as well as most competitive 4.5 diameter drop-in whole house filter housings;SIX MONTH FILTER LIFE - To maximize system performance and efficiency; regularly scheduled maintenance; including replacement of the cartridge every six months (or sooner if a reduction in flow occurs) is required. Filter life is dependent on actual use and incoming quality